It is possibel that you are pregnant. To confirm or exclude this you should do pregnancy
test, your blood has to be investigated to measure HCG (Human chorionic gonadotropin
) level (0-10 U) - NORMAL and ultrasound
should be also made. The bleeding like periods but less intensive could be a result of implantation
of blastocysta in uterine cavity
. However such symptoms as breast tenderness, nausea, etc. usually are also presented and if not the likelyhood of being pregnant is less. Sometimes the change in periods after intercourse is a result of possible infection. Go to your doctor.
Wish you Good Health
Dr O. Aleksandrov